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LM3S8630-EQR100-A2 데이터시트(PDF) 40 Page - Texas Instruments |
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LM3S8630-EQR100-A2 데이터시트(HTML) 40 Page - Texas Instruments |
40 / 546 page 2 ARM Cortex-M3 Processor Core The ARM Cortex-M3 processor provides the core for a high-performance, low-cost platform that meets the needs of minimal memory implementation, reduced pin count, and low power consumption, while delivering outstanding computational performance and exceptional system response to interrupts. Features include: ■ Compact core. ■ Thumb-2 instruction set, delivering the high-performance expected of an ARM core in the memory size usually associated with 8- and 16-bit devices; typically in the range of a few kilobytes of memory for microcontroller class applications. ■ Rapid application execution through Harvard architecture characterized by separate buses for instruction and data. ■ Exceptional interrupt handling, by implementing the register manipulations required for handling an interrupt in hardware. ■ Deterministic, fast interrupt processing: always 12 cycles, or just 6 cycles with tail-chaining ■ Memory protection unit (MPU) to provide a privileged mode of operation for complex applications. ■ Migration from the ARM7™ processor family for better performance and power efficiency. ■ Full-featured debug solution – Serial Wire JTAG Debug Port (SWJ-DP) – Flash Patch and Breakpoint (FPB) unit for implementing breakpoints – Data Watchpoint and Trigger (DWT) unit for implementing watchpoints, trigger resources, and system profiling – Instrumentation Trace Macrocell (ITM) for support of printf style debugging – Trace Port Interface Unit (TPIU) for bridging to a Trace Port Analyzer ■ Optimized for single-cycle flash usage ■ Three sleep modes with clock gating for low power ■ Single-cycle multiply instruction and hardware divide ■ Atomic operations ■ ARM Thumb2 mixed 16-/32-bit instruction set ■ 1.25 DMIPS/MHz The Stellaris ® family of microcontrollers builds on this core to bring high-performance 32-bit computing to cost-sensitive embedded microcontroller applications, such as factory automation and control, industrial control power devices, building and home automation, and stepper motors. April 04, 2010 40 Texas Instruments-Production Data ARM Cortex-M3 Processor Core |
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